Civil Engineering MCQJE Level Civil Engineering
For Noise Pollution, an examiner focuses on decibel scale. Which option is valid? Avoid the common trap that decibel scale is linear in perceived loudness.
Environment and Pollution ControlNoise PollutionEASY
Choose the correct answer
A
noise has no health impact
B
decibel scale is linear in perceived loudness
C
sound level is commonly expressed in decibels
D
noise is measured in litres per second
Correct Answer
C. sound level is commonly expressed in decibels
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Noise pollution is assessed with sound-level metrics. Correct option: C.
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This MCQ belongs to RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.